CVE-2026-64697

System termination or kernel-memory corruption

Published Jul 27, 2026 · Updated Jul 27, 2026

Memory corruption in HFS in Apple macOS before 14.8.8, 15.7.8, or 26.6 allows local users to crash the system via an app. The HFS component mishandles memory while processing app-controlled input, but Apple has not disclosed the affected function or unsafe operation. Execution of an app on an affected Mac is required; triggering the flaw terminates the operating system or corrupts kernel memory, with no published code-execution impact.

CVSS severityUnavailable
Unscored
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in HFS in Apple macOS before 14.8.8, 15.7.8, or 26.6 allows local users to crash the system via an app. The HFS component mishandles memory while processing app-controlled input, but Apple has not disclosed the affected function or unsafe operation. Execution of an app on an affected Mac is required; triggering the flaw terminates the operating system or corrupts kernel memory, with no published code-execution impact.

The record

CVE
CVE-2026-64697
Published
Jul 27, 2026
Updated
Jul 27, 2026
Vendor
Apple
Product
macOS
Classifications
T1499
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jul 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <14.8.8
  2. Affected versionversion=0 <15.7.8
  3. Affected versionversion=0 <26.6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Apple · macOSversion=0 <14.8.8; version=0 <15.7.8; version=0 <26.6

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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